The Badminton World Federation (BWF) revamped its structure in 2018, making it compulsory for the world's top-15 players in the singles events and top-10 pairs in the doubles disciplines to play a minimum of 12 out of 15 World Tour tournaments or face a penalty.

Rio Olympic silver-medallist PV Sindhu continued her rich vein of form as she bounced back from a game down against Spain`s Beatriz Corrales to book her place in the semi-finals of the India Open on Friday.